GWB had a hard on to kill Saddam because Saddam sent assassins to kill GHWB in Kuwait after Desert Storm. Proportedly their were 3 different plots to kill GHWB.
https://www.grunge.com/306774/the-assassination-attempt-against-george-h-w-bush/OTOH, Saddam needed killing. He gassed the Iranians, he gassed the Kurds. That is fact. He violated 16 UN resolutions.
https://georgewbush-whitehouse.archives.gov/infocus/iraq/decade/sect2.html#:~:text=Saddam%20Hussein%27s%20Defiance%20of%20United%20Nations%20Resolutions%20Saddam,pose%20a%20threat%20to%20international%20peace%20and%20security.
If he wanted to stay alive, all he had to do was let the inspectors in.